Search Result for "nash equilibrium":
Wordnet 3.0

NOUN (1)

1. (game theory) a stable state of a system that involves several interacting participants in which no participant can gain by a change of strategy as long as all the other participants remain unchanged; 



WordNet (r) 3.0 (2006):

Nash equilibrium
    n 1: (game theory) a stable state of a system that involves
         several interacting participants in which no participant
         can gain by a change of strategy as long as all the other
         participants remain unchanged